Dynamical Simulation Models of the Open Source Development Process

2008 ◽  
pp. 698-721
Author(s):  
I. P. Antoniades ◽  
I. Samoladas ◽  
I. Stamelos ◽  
L. Angelis
Keyword(s):  
Open Source ◽  
General Framework ◽  
Development Process ◽  
Simulation Models ◽  
Real Data ◽  
Simulation Methods ◽  
Dynamical Simulation ◽  
Closed Source ◽  
Free Open Source ◽  
Open Source Development

This chapter will discuss attempts to produce formal mathematical models for dynamical simulation of the development process of Free/Open Source Software (F/OSS) projects. First, a brief overview for simulation methods of closed source software development is given. Then, based on empirical facts reported in F/OSS case studies, we describe a general framework for F/OSS dynamical simulation models and discuss its similarities and differences to closed source software simulation. A specific F/OSS simulation model is introduced. The model is applied to the Apache project and to the gtk+ module of the GNOME project, and simulation outputs are compared to real data. The potential of formal F/OSS simulation models to turn into practical tools used by F/OSS coordinators to predict key project factors is demonstrated. Finally, issues for further research and efforts for improvement of this first-attempt model are discussed.

AN EMPIRICAL ANALYSIS OF THE OPEN SOURCE DEVELOPMENT PROCESS BASED ON MINING OF SOURCE CODE REPOSITORIES

2007 ◽  
Vol 17 (02) ◽  
pp. 231-247 ◽  
Author(s):  
MARCO SCOTTO ◽  
ALBERTO SILLITTI ◽  
GIANCARLO SUCCI
Keyword(s):  
Open Source ◽  
Empirical Analysis ◽  
Open Source Software ◽  
Development Process ◽  
Source Code ◽  
Point Of View ◽  
Show Evidence ◽  
Recurrent Patterns ◽  
Development Application ◽  
Open Source Development

This paper presents an empirical analysis of the Open Source development process from the point of view of the involvement of the developers in the production process. The study focuses on how developers contribute to projects in terms of involvement, size and kind of their contribution. Data have been collected from 53 Open Source projects and target application domains include different areas: web and application servers, databases, operating systems, and window managers. Collected data include the number of developers, patterns of code modifications, and evolution over the time of size and complexity. The results of this study show evidence that there are recurrent patterns in Open Source software development and these patterns are common to all the projects considered even if there are no superimposed processes for development, application domains are different, and there are contributions from people spread across the world.

Dynamical Simulation Models of the Open Source Development Process

2005 ◽  
pp. 174-202 ◽  
Author(s):  
I. P. Antoniades ◽  
I. Samoladas ◽  
I. Stamelos ◽  
L. Angelis ◽  
G. L. Bleris
Keyword(s):  
Open Source ◽  
General Framework ◽  
Development Process ◽  
Simulation Models ◽  
Real Data ◽  
Simulation Methods ◽  
Dynamical Simulation ◽  
Closed Source ◽  
Free Open Source ◽  
Open Source Development

This chapter will discuss attempts to produce formal mathematical models for dynamical simulation of the development process of Free/Open Source Software (F/OSS) projects. First, a brief overview for simulation methods of closed source software development is given. Then, based on empirical facts reported in F/OSS case studies, we describe a general framework for F/OSS dynamical simulation models and discuss its similarities and differences to closed source software simulation. A specific F/OSS simulation model is introduced. The model is applied to the Apache project and to the gtk+ module of the GNOME project, and simulation outputs are compared to real data. The potential of formal F/OSS simulation models to turn into practical tools used by F/OSS coordinators to predict key project factors is demonstrated. Finally, issues for further research and efforts for improvement of this first-attempt model are discussed.

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